TUNNELING SHIELD Russian patent published in 2001 - IPC

Abstract RU 2166088 C1

FIELD: underground construction. SUBSTANCE: tunneling shield has a body with hermetic partition separating high-pressure face zone from zone with atmospheric pressure; shield hydraulic jacks; excavating member having turning jib provided with hydraulic cylinder for jib turning relative to transverse axis of shield and bucket member located at jib end; and rotary overloader. Located over perimeter of dome part of hermetic partition are aperture accommodating additional bucket members, each movably connected with hydraulic cylinder of its axial motion and hydraulic cylinder of its turning. Said hydraulic cylinders are located in airtight hollow members found in aperture over perimeter of dome part of hermetic partition. Hydraulic cylinders of bucket members over perimeter of dome part of hermetic partition and hydraulic cylinder of excavating member with hydraulic service lines are located in zone of atmospheric pressure. EFFECT: higher productivity and efficiency of tunneling under various mining and geological conditions. 2 cl, 4 dwg

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RU 2 166 088 C1

Authors

Kabanov V.E.

Semenov A.N.

Gil'Shtejn S.R.

Krutov V.K.

Kulikov E.G.

Stogov S.N.

Dates

2001-04-27—Published

1999-11-04—Filed